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作 者 ：吴钿;叶春海;丰锋;夏春华

期 刊 ：植物研究 2011年 31卷 2期 页码：169-174

关键词：菠萝蜜；花药；解剖结构；花粉萌发；

Keywords:jackfruit, anther, anatomical structure, pollen germination,

摘 要 ：研究花药发育过程和花粉萌发条件是菠萝蜜稳产优质的基础。采用石蜡切片和离体培养的方法，对菠萝蜜花药的发育和花粉萌发进行了研究，结果表明：菠萝蜜的花药有4个花粉囊；减数分裂的胞质分裂有连续型和同时型两种形式，形成了等双面体排列和四面体排列的四分体；成熟花药的表皮细胞积累有大量的单宁。160 g·L^-1的蔗糖和0.25 g·L^-1的硼酸混合溶液对菠萝蜜花粉萌发具有明显的促进作用，CaCl₂对菠萝蜜花粉萌发作用不明显。

Abstract:Studies on the anther development and pollen germination conditions are the essential elements for a good harvest and high quality of jackfruit. Using paraffin sections and in vitro culture method, the anther development and pollen germination of jackfruit were observed. The results showed that there are four pollen sacs in the jackfruit anther, and there are two types of cytokinesis in the meiotic, namely the continuous type and the simultaneous type, which formed tetrads arranged to be equally bifacial or tetrahedral. Moreover, a great many of tannin was observed to be accumulated in the mature anther epidermal cells. The mixed solution of 160 g·L^-1 sucrose and 0.25 g·L^-1 boric acid had an obvious catalytic effect on the jackfruit’s pollen germination, while CaCl₂ exerted almost no effect.

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